HS1.1.2

Effective policy problem structuring – especially for ‘wicked’ environmental problems such as river pollution – involves the abstraction of governable elements of often diffuse ‘problematic situations’ through analysis and deliberation in order to identify tractable policy space. This involves facilitating some convergence around problem conditions, matching said conditions with available solutions, and mediating the diverse priorities and perspectives of large groups of stakeholders.

For large river basins characterized by multi-level governance and high population, industrial, and agricultural density – as in the Brantas River in East Java, Indonesia – the process of structuring water quality problems and formulating management plans is inevitably complex. Three shifts in water resource management, all aimed to improve efficacy, policy legitimacy, and representativeness, also present new challenges for problem structuring and planning. First, the evidence-based policy movement has been tempered by recognition of the political nature of science, driving inclusion of additional kinds of knowledge beyond hydrological, chemical, and biological science. Second, the mainstreaming of IWRM has encouraged a shift towards horizontally-arranged, multilevel governance networks of diverse actors across sectors, who bring their own problem perspectives and strategic preferences. Third, renewed interest in implementation studies has refocused attention on institutional, cultural, and capacity-related design requirements.

This research posits that the effective implementation of river environmental solutions depends largely on their responsiveness to administrative, social, and institutional factors as well as on their sympathetic alignment with stakeholders’ established priorities. Nevertheless, these important design factors often fall to the wayside in the design and selection of interventions, simply because they are not specifically and intentionally included in the processes of problem analysis and policy deliberation.

As part of a multi-stakeholder water quality management project in the Brantas basin, this research gathers and analyzes administrative and political knowledge inputs to complement technical inputs in the design of an Integrated Water Quality Management Plan. It combines two policy enquiries with hydrological science to support problem-structuring, namely perceptions survey research of water managers and systematic review of government agencies’ medium-term strategic plans. The survey research gathers perceptions of water managers across agencies and levels of government in East Java regarding the legal environment of water quality governance (legal basis, allocation of responsibilities, regulatory settings, conflict mediation), policy conditions (planning, coordination, monitoring, finance), and administrative and management arrangements, revealing differing perspectives on institutional opportunities and challenges amongst agency representatives within the same basin. The second identifies areas of strategic commonality centered on hydrological data management, community engagement, integrated solid waste management, industrial wastewater enforcement, and communal wastewater treatment. These findings are set out for consideration in two subsequent processes: the appraisal of feasibility and sustainability of interventions proposed for inclusion in the management plan, and to inform the nomination of implementing bodies for component activities within the plan.

How to cite: Houser, S., Pramana, R., and Ertsen, M.: Getting to the crux(es) of the matter(s): Water quality and problem-setting in the Brantas River basin, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-7276, https://doi.org/10.5194/egusphere-egu22-7276, 2022.

The European Commission in 2015, as part of the Common Implementation Strategy (CIS), defined the Ecological Flow (EFlow) in natural surface water bodies as “a hydrological regime consistent with the achievement of the environmental objectives of the WFD in natural surface water bodies as mentioned in Article 4”. These environmental objectives refer to (i) non-deterioration of the existing status, (ii) achievement of good ecological status in natural surface water bodies, and (iii) compliance with standards and objectives for protected areas. The Report does not define a standard protocol for setting an EFlow but it provides some recommendations.

The approaches for determining the EFlow, which must be defined in the River Basin Management Plans, are grouped into four classes hydrological, hydraulic, habitat, and holistic method. However, few methods have been specifically defined for temporary rivers. Most of these waterways have been poorly monitored in the past. The lack of historical hydrological and biological data in natural conditions ("reference") further complicates the definition of the EF.

This work analyses the implementation EFlow in the European Member States in Southern Europe under Mediterranean climate with specific reference to temporary rivers, which are the most common waterways in Spain, Portugal, France, Greece, and Italy. Through an examination of the case studies reported in the literature, a critical review of the methodologies adopted in these EU Member States for setting an EFlow has been carried out.

Results of this study showed that although all States have integrated into their legislation the EFlow recommendations by the EC, in several cases its implementation is not enforced sufficiently and several difficulties still exist in setting an EFlow. Case studies where the EFlow implementation was specifically designed for temporary rivers are still very few and most of the applications are based on hydrological methods. The paucity of hydrological and water quality data is the most important limit in setting an EFlow.

How to cite: Leone, M., Gentile, F., Lo Porto, A., and De Girolamo, A. M.: Ecological flow in southern Europe: implementation in temporary rivers, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8309, https://doi.org/10.5194/egusphere-egu22-8309, 2022.

River water quality changes have been shown to follow typical trajectories, often characterized by sequential phases of accelerated degradation, environmental recovery, and responsive management. However, the relationships between anthropogenic mitigation measures such as regulatory interventions and their effects on water quality remain rarely studied and poorly understood.

In this study, we evaluate the effectiveness of three types of regulations: source-control, use-related and end-of-pipe regulations. Using phosphorus (P) as a model substance for water quality, we analyse a 50-year trajectory of measured total phosphorus (TP) concentrations in the river Ruhr, Germany, and link this with a comprehensive analysis of water quality related laws and regulations being enforced at the national and European level over the same time period. We categorized the regulations according to the aforementioned types and re-analysed the infrastructure developments and operation modes in a literature review and based on research in the archives of the responsible river basin management authority.

The strong decline of TP concentrations from a maximum of 0.59mg/l TP in 1977 to around 0.05mg/l TP in the early 21^st century resulted dominantly from source control by banning of P in detergents, the parallel construction of wastewater treatment plants and their sequential upgrade to treatment stages incorporating P removal. Thus, while point source pollution decreased, the share of agricultural and other diffuse sources of riverine TP concentrations increased to around 50%, making them the focus of attention nowadays. As source control and end-of-pipe measures have reached a level at which a further reduction of TP concentration in the river through those means would be marginal, use-related measures gain importance, especially for agricultural practices.

Our results show that source-control was the most effective and fastest way of reducing TP pollution, whereas end-of-pipe measures were a necessary, complementary way to reduce P related water quality impairment. Given the current dominance of diffuse pollution sources resulting from agricultural inputs, where the effectiveness of regulation is likely to be limited, additional measures such as awareness, economic incentives and support for agricultural best management practices need to be addressed. These findings may provide important insights into understanding the effectiveness of different regulatory measures, in particular with regard to the increasing introduction of (new) pollutants and associated impacts on the environment and human health.

How to cite: Hildebrandt, S., Krüger, E. H., Westphal, K., Ruhl, A. S., and Borchardt, D.: Efficacy of source-control, use-related and end-of-pipe regulations on river water quality in a large German river catchment: a 50-year trajectory, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-10129, https://doi.org/10.5194/egusphere-egu22-10129, 2022.

According to future climate projections both droughts and floods are expected to increase in severity and frequency. A lot of research has been done on the adaptation of society and the feedbacks between hazard and society for these individual hazards, while the feedbacks between hazards and society in a system that experiences drought followed by flooding are less well known. In this study we aim to identify common variables and characteristics of different human-water systems that experience drought-to-flood events and use this to inform model development. Through a literature study of a variety of case studies across the world we investigate the hydrological and socio-economic settings and characteristics of each system as well as the underlying processes and adaptation measures that played a role in the events. Drought-to-flood events can have very different drivers and impacts. In some cases the main driver is human adaptation, such as in the case of the Millennium Drought in Australia where flood prevention reservoirs were already full because they were being used to store water to cope with the drought (Van Dijk et al. 2013). In other cases the combination of hydrological drivers plays a more important role, such as in the case of Peru where a drought followed by extreme rainfall resulted in mud-slides (Fraser 2017). The comparison across cases provides an overview of common variables as well as differences between case studies and is used to inform the construction of one socio-hydrological model that fits all or multiple models that capture the specifics of each case. In future work the model(s) will be used for a more in-depth investigation of the behaviour of a selection of human-water systems, using qualitative and quantitative data in combination with the models to investigate possible future pathways and policy interventions.

References

Fraser, B. (2017). Peru’s floods teach tough lessons. Nature, 544(7651), 405-406.

Van Dijk, A. I., Beck, H. E., Crosbie, R. S., de Jeu, R. A., Liu, Y. Y., Podger, G. M., ... & Viney, N. R. (2013). The Millennium Drought in southeast Australia (2001–2009): Natural and human causes and implications for water resources, ecosystems, economy, and society. Water Resources Research, 49(2), 1040-1057.

How to cite: Barendrecht, M. H., Matanò, A., Mendoza, H. D., Weesie, R. V., and van Loon, A. F.: Modelling human-water systems experiencing drought-to-flood events: is there one model that fits all?, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-222, https://doi.org/10.5194/egusphere-egu22-222, 2022.

The excessive use of pesticides in agriculture poses a threat to water and environmental quality. Under Horizon Europe, considering the priorities of the European Green Deal (EGD), research activities, technological innovation, and investments are needed to contribute to reducing the use of pesticides, fertilizers, and antimicrobials. In this scenario, there is a need to carry out studies on the short and long-term effects of the use of pesticides in the agro-environment and on the effect of mitigation measures. For this purpose, hydrological models are useful tools for the simulation of the fate and transport of pesticides.

Through a critical review, this study aims to: (i) update the status of the use of the hydrological models to simulate pesticides coming from diffuse pollution, (ii) Analyze the spatial and temporal scale of the model applications, (iii) Investigate possible relationships between models and specific pesticides. The ISI papers were selected based on six keywords were used on Scopus: “pesticides, model, watershed, hydrology, water quality, diffuse pollutant”. After removing articles, not in English and articles not related to modeling applications, 37 papers were found and analyzed by constituting a database containing information about the study areas, the pesticides, the model, and the methodology adopted (I.e. warm-up, calibration, and/or validation). Pesticides were classified into three categories: herbicides, fungicides, and insecticides.

Results showed that most of the study areas were localized in Europe (55.5%) followed by North America (22.3%), Asia (13.9%), and South America (8.3%). Soil and Water Assessment Tool was the most commonly used model with a percentage of 45.95%. Regarding the substances investigated, herbicides were the most modeled (71.4%) followed by insecticides (18.2%) and fungicides (10.4%). In particular, among the most commonly modeled herbicides were atrazine, metolachlor, isoproturon, glyphosate, and acetochlor. Among the insecticides, chlorpyrifos and metaldehyde were the substances most frequently modeled. Finally, chlorothalonil and tebuconazole were the most investigated fungicides.

This work will be useful to create an updated guideline to facilitate the water and the landscape managers in selecting a specific hydrological model to assess the transport and fates of pesticides and to simulate the effect of potential mitigation practices.

How to cite: Centanni, M., Ricci, G. F., De Girolamo, A. M., and Gentile, F.: Modeling pesticides in surface runoff: a review of the current status, progress achieved and desirable improvements., EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8317, https://doi.org/10.5194/egusphere-egu22-8317, 2022.

Participatory processes provide opportunities for stakeholders such as: scientists, policy makers and citizens to meet, exchange information, deliberate and share values. The artefacts through which the water professionals (scientists and policy makers) and the other stakeholders can enable these participatory processes are defined as tools. There is a diversity of rapidly evolving tools for supporting the process of designing nature-based solutions (NbS) together with the stakeholders (participatory designing). This, however, requires a systematic and informed selection to facilitate the adequate choice of tool, aligned to the requirements and context of the water professionals but also the stakeholders. Despite this, there is still little progress and knowledge accumulation over preferred tools. Moreover, while tailored participatory tools could facilitate and accelerate the design process of NbS, a comprehensive mapping of their availability and capacity to respond to the values, requirements and needs of the stakeholders is still missing.

Consequently, in this research, we propose a stepwise framework for the use of tools as support in three interconnected processes: i) tools used for co-designing NbS with stakeholders - co-creation tools, ii) tools used for defining the hydro-meteorological hazards (HMH) and its effects with stakeholders – knowledge tools and iii) tools used for co-implementing the transition towards NbS – transition tools. We then test this stepwise framework in six brook catchments spread in four countries: the Netherlands, Belgium, France and the United Kingdom. The stepwise framework is designed in the following order: tool collection and selection; classification; grading and mapping. We are content that this stepwise framework could show how the water professionals, could make an informed selection and decision on the most suitable tool, based on the usability index of the tool for the specific stakeholder groups and the following criteria: tool category, objective of the tool, the required decision making process stage, the type of stakeholders, and the practical requirements (time, budget, number of participants).

Therefore we designed and tested a framework that allows the water professionals to make a decision on which tool/s could be best used based on their usability but also in terms of their characteristics analysed and described from the water professionals/practitioners themselves. What further discussion on this framework might entail is regarding the trends that we notice in the Co-Adapt project, the limitations and what happens after the tool or suite of tools is applied based on actual field experiences.

How to cite: Bogatinoska, B., Lansu, A., Huitema, D., Hugé, J., and Dekker, S.: Designing Nature-based Solutions in a Participatory Way: Usability of Tools for Water Professionals, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-7785, https://doi.org/10.5194/egusphere-egu22-7785, 2022.

Over several years, flood management was concentrated on a physical solution such as building flood control structures like levees or dikes. However, with the increasing term of  “socio-hydrology” within the scientific community, the importance of analyzing the feedback between socio and hydrological systems is drawing attention for effective flood management. Many studies(Di Baldassarre, G et al., 2013; Green, C et al., 2011) have warned about the levee effect, which means increasing vulnerability due to non-occurrence of frequent flooding as a result of flood control structure system. Research to understand such interactions from a sociohydrology perspective is mostly conceptual and limited to qualitative analysis. In this study, we quantitively evaluate the dynamic behavior of a system composed of flood-economy-infrastructure. Sociohydrology model based on the differential equation for dynamic analysis system was used to interpret the Yangjae river flood plain numerically. The results confirmed that excessively built flood control structure systems increased flood risk and hindered economic growth.

How to cite: Kang, S., Uranchimeg, S., Cho, H., and Kwon, H.-H.: An Interaction between flood and economy of Yangjae River in socio-hydrology perspective, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-11789, https://doi.org/10.5194/egusphere-egu22-11789, 2022.

The constantly expanding research literature in hydrological sciences underlines the necessity of knowledge integration and synthesis. Review papers aim to provide a comprehensive overview of the published literature with focus on research gaps and priorities on a specific topic and/or region. While the hydrological science community has responded well to address the needs for knowledge integration and synthesis through publishing many review papers, it is not clear if and how these review papers can be helpful beyond academia. This is particularly important for tackling water-related issues in collaboration with water practitioners and stakeholders working towards providing operational hydrology services (e.g., data collection and management, modelling, prediction, hydroinformatics, decision support). Despite the societal relevance of applied hydrology research in the context of global development agenda, the potential of review papers for achieving the research-practice interface remains unexplored or largely ignored. Hereby, we discuss how review papers in hydrology could contribute to this dialogue and remove barriers around the translation of research into practice. With this objective in mind, we reflect on several principles of writing and communicating review papers, including: 1) effective writing (e.g., language and format), 2) purposeful content design and development (e.g., review context, research synthesis, main findings and implications), 3) high accessibility (e.g., open access publishing), and 4) efficient visibility and dissemination (e.g., meetings with stakeholders and/or users,  social media, artistic material). For each principle, we explore strategies, resources and tools to improve the benefit of review papers to  hydrology practitioners.

How to cite: Dogulu, N., M. Mosquera, G., and Ramos, M.-H.: Review papers in hydrology for linking research to practice: a reflection on the why’s and how’s, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8748, https://doi.org/10.5194/egusphere-egu22-8748, 2022.

The increase in water demand and droughts have exacerbated water inequalities and weakened the economy worldwide. Nonetheless, droughts alone do not justify the severity of water scarcity events, leading to public water rationing and restrictions. It is of paramount importance to obtain a better understanding of how public perceptions of and attitudes towards drought adaptation strategies influence the severity and extent of impacts on water consumption. Furthermore, studies on the general public’s willingness to pay for mitigation and adaptation measures are key for the design and implementation of efficient and effective water management policies. This study aims to inform policy and decision-making by investigating people’s experiences, perceptions, and assessments of past water scarcity events to understand how these past events may have changed their attitudes and behaviour towards water availability and saving. Data were collected by surveying a sample of 800 residents in the Metropolitan Area of São Paulo (MASP) in South-eastern Brazil, and in Campo Grande in Midwestern Brazil. The MASP faced a severe drought from 2014 until and including 2015 due to a decrease in rainfall and human factors, including water resource mismanagement. This vulnerability frame is also observed in Campo Grande, where residents faced serious water rationing in 2016 and 2019. Our results show that more than 80% of the respondents think the frequency of drought periods increased over the last 10 years and will continue to increase in the next 10 years, and 95% of the respondents believe climate change is real. These results also corroborate the fact that 80% of the sample have faced water restrictions or rationing in the past, of which most lasted more than one day. The study provides policy and decision-makers with important information about the future design of payments for watershed services (PWS) to improve water security. However, one in every fifth respondent does not believe that a possible payment for water saving measures in the surrounding watersheds supplying the cities with drinking water would be invested by the responsible authorities to reduce future water restrictions and rationing and, therefore, improve water security. This reveals a considerable mistrust in the local, regional, and state governments responsible for water supply. Our findings provide important insights into relevant feedbacks between hydrological events such as droughts and societal vulnerability and response inserted into the present-day Brazilian cultural, socioeconomic, and political context, and the effectiveness of economic policy instruments like PWS.

How to cite: Sone, J., Gesualdo, G., Schwamback, D., Wendland, E., and Brouwer, R.: Public perception of droughts and water shortages and metropolitan willingness to pay for water saving measures to improve water security, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-13392, https://doi.org/10.5194/egusphere-egu22-13392, 2022.

The Winter Storm of February 2021 left millions of Americans in Gulf Coast states without access to reliable, clean domestic water during the COVID19 pandemic. In the state of Texas, over 17 million people served by public drinking water systems were placed under boil water advisories for periods ranging from one day to more than one month. We combine public boil water advisory data with demographic information from the 2010 United States Census to understand the affected populations. Additionally, we are conducting a survey of over 350 households in Texas to portray the impact of demographics and family considerations on Texans personal experiences with water access during the Winter Storm of 2021. Statistical analysis shows that the duration of boil water advisories depended partly on the size of the public water system. Large, predominantly urban systems (serving more than 10,000 individuals) tended to issue shorter advisories (median of 6 days and a maximum of 12 days). Smaller systems (serving less than 10,000 individuals) experienced a wide range of advisory lengths with a median of 8 days and a maximum of 36 days. Principal component analysis shows two main dimensions of variability among public water systems based on weather and demographics. Some of the longest boil water advisories exhibit clustering consistent with smaller, more rural systems (which also tend to serve predominantly white communities). Though these communities' benefit from public water service, the systems that serve them may have fewer resources to address problems that arise in extreme weather events. Small, rural or ex-urban communities with a greater portion of non-white residents have historically been excluded from public water service in the US (a problem known as underbounding). Some of these communities lack access to clean drinking water year-round and are more likely to experience more significant barriers to access in extreme weather events such as the Winter Storm of 2021. More studies are needed to understand and address disparities in clean water access throughout the US.  

How to cite: Tomko, B., Sawyer, A. H., Sánchez-Vila, X., and Nittrouer, C.: Public Drinking Water Access in Texas (United States) Communities During The Winter Storm 2021, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-10351, https://doi.org/10.5194/egusphere-egu22-10351, 2022.

We used Natural Language Processing (NLP) to assess topic diversity in the abstracts of all research articles (75,000) from eighteen water science and hydrology journals published between 1991 and 2019 -- these are all water science journals with an SCI h-index > 0.9. We found that individual water science and hydrology research articles are becoming increasingly interdisciplinary in the sense that, on average, the number of sub-topics that are represented in individual articles is increasing. This is true even though the body of water science and hydrology literature as a whole is not becoming more topically diverse. These findings suggest that the National Research Council's (1991) recommendation to increase multidisciplinarity of hydrological research has been followed in the sense that individual researchers are working to make their work more interdisciplinary. Topics with the largest increases in popularity were ‘Forecasting’ and ‘Climate Change Impacts’, and topics with the largest decreases in popularity were ‘Hydraulics’, ‘Solute Transport’, and ‘Aquifers and Abstraction’. Out of the eighteen journals that we tested, Hydrological Processes, Journal of Hydrology, and Water Resources Research are the three most topically diverse journals in the discipline. We also identified topics that are becoming increasingly isolated, and could potentially benefit from integrating more with the wider hydrology discipline.

How to cite: Rahman, M., Frame, J., Lin, J., and Nearing, G.: Hydrology Research Articles Are Becoming More Interdisciplinary, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-13024, https://doi.org/10.5194/egusphere-egu22-13024, 2022.

The steadily growing demand for energy and the simultaneous pursuit of decarbonization are increasing interest in the expansion of renewable energies worldwide. Hydropower produces around 60% of Switzerland's electricity and plays a key role in this energy transition strategy. However, habitat and ecosystem protection and climate friendly renewable energy production are sometimes at odds. While the environmental impact is usually addressed at some level, there is a lack of standardization and tools for a global assessment are still scarce. The GIS-based tool HYDROpot_integral allows the consideration of the total hydropower potential as well as the ecological potential of a region. Based on ecological and socio-economic geodata, both the current state of each river reach and the hydropower potential is assigned a rank. To record the suitability, every river reach is ranked according to their ecological, cultural and economic ecosystem services. A low rank means that a river reach is more suitable for hydropower production at low cost in terms of ecological and cultural ecosystem services; a high rank indicates high ecological and cultural ecosystem services and low economic services and is therefore more suitable for protection. As the limit between hydropower use and protection is adjustable, different scenarios can be explored. Results from five mesoscale test catchments in Switzerland show the feasibility of the present method, to provide a comprehensive and meaningful basis that can support the decision-making process. Overall, the assessment method is to be understood as a flexible tool to address tradeoffs between hydropower potential and ecological potential.

How to cite: Hug Peter, D., Wechsler, T., Weingartner, R., and Zappa, M.: Addressing tradeoffs beyond disciplinary borders: HYDROpot_integral as a tool to simultaneously assess hydropower potential and ecological potential, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-5738, https://doi.org/10.5194/egusphere-egu22-5738, 2022.

Human activities can have substantial impacts on watersheds, and a dominant, yet understudied, impact on urban watersheds is the inflow and infiltration (I&I) of water into sewage infrastructure. This study uses a water-budget approach to quantify the magnitude of I&I and its effects on streamflow. The analysis is performed over the 2013-2020 period on 90 watersheds in the Atlanta, Georgia USA metropolitan statistical area (MSA), which has a humid subtropical climate. The following annual totals are determined for each watershed: precipitation, water leakage from municipal sources, actual evapotranspiration (AET), water withdrawals, and observed stream discharge. AET is the most difficult component to estimate, therefore, multiple models are used to estimate AET totals, and reference watersheds are used to adjust the totals. Predicted discharge is estimated by subtracting known water outputs from the water inputs, and I&I was the difference between predicted discharge and observed discharge. The most I&I-impacted watersheds are those with the largest I&I to stream discharge ratios. Mean annual totals for precipitation and supply-pipe loss for those watersheds are 1,498 mm and 39 mm, respectively. Mean annual totals for AET, stream discharge, and I&I, are 737 mm, 534 mm, and 267 mm. Therefore, the mean I&I to streamflow ratio for the ten most I&I-impacted watersheds is 0.51 (i.e., I&I is 51% of streamflow). Mean population densities, percent developed, and percent imperviousness for the ten watersheds are as follows: 1,308 people per km², 60%, and 37%, respectively. I&I is strongly positively correlated with the above three urbanization variables. Regression analyses show that population density explains approximately 50% of the variation in I&I and is the best predictor of I&I. The most urbanized watersheds in the Atlanta MSA have relatively low population densities compared to typical urban watersheds globally, so it remains to be seen if the regression model can be used in locales with much higher population densities. Nevertheless, these results are supported by previous findings in the eastern United States and the results should be transferrable to most urban watersheds there, while the general approach for quantifying I&I should be applicable globally.

How to cite: Diem, J., Pangle, L., Milligan, R., and Adams, E.: Using a Water Budget Approach to Quantify Inflow and Infiltration Impacts on Urban Streamflow, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-13135, https://doi.org/10.5194/egusphere-egu22-13135, 2022.